"N_Cook" wrote in -
september.org:


UC3842 PWM controller , instead of simple RtCt pin , it uses the o/p of a
555 so that there can be diode steering for different timings




Ah,nothing like taking a great simple PWM IC circuit and making it more
complex....

Now I wonder about the circuit makes the ramp for the internals of the
3842,while not using the RtCt function.Seems like that could affect the
current limit function.

--
Jim Yanik
jyanik
at
localnet
dot com